RSPL

FREQUENTLY ASKED QUESTIONS

The difference between a plain bearing hinge and a ball bearing hinge is that a plain bearing hinge does not have a buffer between the connecting knuckle leaves when the hinge pin is inserted. A ball bearing hinge has a ring casing between these two points of contact with ball bearings inside, which in turn causes less friction when the hinge is opened and closed.

The result is a more fluid and quiet motion when opening and closing the door, with far less hinge dust over time that often develops on regular hinges when the steel knuckles ride against each other.

Black dust is caused by metal riding on metal. There is no way to prevent this from occurring entirely, but it is recommended to use a ball bearing hinge to prevent most dust, especially on heavier doors.

We do not currently produce or offer to market any hinges with steeple or decorative tips.

A hinge swage is the offset bend of a hinge that makes it parallel upon closing. There are many different varieties of swaging sizes. The most common residential swages are:

  • Swage is a standard spec. The gap to parallel is 1/16”
  • Swage is a custom callout specification. The gap to parallel is 1/8

We offer a different type of hinge for this. The hinge is well covered using a low – adherence tape and an individual can remove that tape from their hands just after unfinished door will get finished. This is because installation, taping and painting, as well as general construction, clean up and other activities can lead to damage.

Standard steel-based finished, plated hinges and hardware products meet or exceed the industry minimum standard; Rishi Seals Pvt Ltd produces to a much higher-than-minimum standard to provide the highest quality finished product.

Oxidization (rust) is eventually going to occur over time on all steel-based plated products. This process will be accelerated, if not begin to immediately occur, from

  • Excessively humid or wet environments
  • Building designs that do not wick and/or capture moisture
  • Foreign cleaning agents applied directly to, wiped on, or sprayed on that delaminate the finish
  • Paint drippings, splatter, or overspray
  • General misuse

We recommend using a stainless steel or stainless steel-based product if you will be in excessively wet or humid environments, or if the design or building application limits drying out from weathering. It is important to keep foreign agents away from these products, and if cleaning them, to do so only using a warm-water and mild-soap solution.

All our stainless-steel products are a 304 grade. This is to provide the highest quality and most resistance to oxidization (rust). 304 grade hinges are not recommended in marine environments, which is direct physical contact with salt water. We recommend a 316-grade hinge, which can be reviewed for special lead time production. We do have 304,316,202 and 204 grades.

A door may squeak over time for a variety of reasons. Door weight, balance of frame at installation, and even home settling can all be factors. Oiling and greasing is recommended. A heavier lubricant such as white lithium, one that’s lanolin-based, silicone or other synthetic greases are most recommended for duration.

If painting will be done after a unit is installed, removing all door hardware is recommended. Any hardware not removed should be well covered and/or taped using a recommended low-adherence painter’s tape such as Scotch™ Blue or a lighter grade tape.

It is important to keep paint from getting on your hinges as many chemicals in paint itself can damage the finishes on your hinges. This is also true for cleaners that contain chemicals.